Object Rexx for Os/2 Warp

Many OO languages seem complicated and alien to programmers familiar with procedural languages such as COBOL. This book introduces Object REXX, a new OO language that breaks the OO barrier. Object REXX is based on a tried-and-trusted language used around the world today. Because it has the most complete and easy-to-use set of OO features of any language, it offers a simple way for programmers with a procedural background to enter the new world of objects. Object REXX also supports distributed objects written in many other languages through Common Object Request Broker Architecture (CORBA) technologies, such as IBM's System Object Model (SOM). This book demonstrates a practical approach to using Object REXX and OO techniques to develop commercial systems to meet changing business requirements. It tells the story of how Hanna, Steve, and Curt design and implement a commercial application system step by step, using object persistence in file systems and relational databases, GUI builders, existing SOM-based objects, the OS/2 Workplace Shell, and Internet Web pages. Extensive code examples are provided to illustrate every step.